Spark plug opinions

Took it to the track and it started missing pretty good so I left off of it. Pulled the plugs again when I got home. They weren't white which was a relief but they were starting to glaze. I changed the plugs and took it out on the road and flat footed it. No miss and actually pulled me into the seat harder then it did at the track. So I'm thinking the plugs fixed it. Before I was running Autolite 3923s and the plug in the pic is the ones I had laying around. They are Autolite 5224s. Still some fine tuning but well see what happens the next go round.

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